/* ═══════════════════════════════════════════════════════════════
   StadiumIQ — Premium Design System
   FIFA World Cup 2026 | AI-Powered Stadium Experience
   ═══════════════════════════════════════════════════════════════ */

/* ─── Google Fonts ────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800;900&display=swap');

/* ─── CSS Custom Properties (Design Tokens) ──────────────────── */
:root {
    /* Primary Palette */
    --bg-deep: #060918;
    --bg-primary: #0a0e27;
    --bg-secondary: #111638;
    --bg-card: rgba(17, 22, 56, 0.7);
    --bg-glass: rgba(17, 22, 56, 0.4);

    /* Accent Colors */
    --accent-purple: #7c3aed;
    --accent-purple-light: #a78bfa;
    --accent-cyan: #06d6a0;
    --accent-gold: #d4af37;
    --accent-pink: #f72585;
    --accent-blue: #3a86ff;
    --accent-orange: #ff6b35;

    /* Gradients */
    --gradient-hero: linear-gradient(135deg, #7c3aed 0%, #06d6a0 50%, #3a86ff 100%);
    --gradient-purple: linear-gradient(135deg, #7c3aed, #a78bfa);
    --gradient-gold: linear-gradient(135deg, #d4af37, #f0d070);
    --gradient-cyan: linear-gradient(135deg, #06d6a0, #4cc9f0);
    --gradient-pink: linear-gradient(135deg, #f72585, #ff6b9d);
    --gradient-card: linear-gradient(145deg, rgba(124, 58, 237, 0.1), rgba(6, 214, 160, 0.05));

    /* Text */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-accent: #a78bfa;

    /* Glass */
    --glass-border: rgba(124, 58, 237, 0.2);
    --glass-border-hover: rgba(124, 58, 237, 0.4);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --glass-blur: blur(20px);

    /* Typography */
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Outfit', 'Inter', sans-serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 400ms cubic-bezier(0.16, 1, 0.3, 1);

    /* Sizes */
    --navbar-height: 72px;
    --max-width: 1280px;
    --sidebar-width: 320px;
}

/* ─── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    padding: 0.75rem 1rem;
    background: var(--accent-purple);
    color: var(--text-primary);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    z-index: 2000;
    text-decoration: none;
}

.skip-link:focus {
    left: 1rem;
}

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: 3px solid var(--accent-cyan);
    outline-offset: 3px;
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
    background: var(--accent-purple);
    border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--accent-purple-light); }

/* ─── Animated Background ────────────────────────────────────── */
.bg-mesh {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.bg-mesh::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(124, 58, 237, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(6, 214, 160, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(58, 134, 255, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(212, 175, 55, 0.06) 0%, transparent 50%);
    animation: meshFloat 20s ease-in-out infinite alternate;
}

@keyframes meshFloat {
    0% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(-2%, 1%) rotate(1deg); }
    66% { transform: translate(1%, -1%) rotate(-0.5deg); }
    100% { transform: translate(-1%, 2%) rotate(0.5deg); }
}

/* ─── Navbar ─────────────────────────────────────────────────── */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    background: rgba(6, 9, 24, 0.85);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 0 var(--space-xl);
}

.navbar-inner {
    max-width: var(--max-width);
    width: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    color: var(--text-primary);
}

.navbar-brand .logo-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--gradient-hero);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 800;
    box-shadow: 0 0 20px rgba(124, 58, 237, 0.4);
}

.navbar-brand .brand-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.3rem;
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-brand .brand-badge {
    font-size: 0.6rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    background: rgba(212, 175, 55, 0.15);
    color: var(--accent-gold);
    border: 1px solid rgba(212, 175, 55, 0.3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    list-style: none;
}

.navbar-nav a {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition-base);
    position: relative;
}

.navbar-nav a:hover,
.navbar-nav a.active {
    color: var(--text-primary);
    background: rgba(124, 58, 237, 0.1);
}

.navbar-nav a.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 2px;
    background: var(--gradient-hero);
    border-radius: var(--radius-full);
}

/* Mobile menu toggle */
.navbar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
}

/* ─── Main Content ───────────────────────────────────────────── */
.main-content {
    position: relative;
    z-index: 1;
    padding-top: var(--navbar-height);
    min-height: 100vh;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* ─── Hero Section ───────────────────────────────────────────── */
.hero {
    padding: var(--space-3xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    background: rgba(124, 58, 237, 0.15);
    border: 1px solid rgba(124, 58, 237, 0.3);
    color: var(--accent-purple-light);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    animation: fadeInDown 0.8s ease-out;
}

.hero-badge .pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-cyan);
    animation: pulse 2s ease-in-out infinite;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.8s ease-out 0.1s both;
}

.hero h1 .gradient-text {
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

/* ─── Buttons ────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-hero);
    color: white;
    box-shadow: 0 4px 20px rgba(124, 58, 237, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(124, 58, 237, 0.5);
}

.btn-secondary {
    background: var(--bg-glass);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
}

.btn-secondary:hover {
    background: rgba(124, 58, 237, 0.1);
    border-color: var(--glass-border-hover);
    transform: translateY(-2px);
}

.btn-gold {
    background: var(--gradient-gold);
    color: #1a1a2e;
    box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3);
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.4);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
}

/* ─── Stats Counter ──────────────────────────────────────────── */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--space-md);
    padding: var(--space-xl) 0;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.stat-item {
    text-align: center;
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    background: var(--bg-glass);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    transition: var(--transition-base);
}

.stat-item:hover {
    border-color: var(--glass-border-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(124, 58, 237, 0.15);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: var(--space-xs);
    font-weight: 500;
}

/* ─── Section Titles ─────────────────────────────────────────── */
.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: var(--space-sm);
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ─── Glass Card ─────────────────────────────────────────────── */
.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-hero);
    opacity: 0;
    transition: var(--transition-base);
}

.glass-card:hover {
    border-color: var(--glass-border-hover);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.glass-card:hover::before {
    opacity: 1;
}

/* ─── Feature Cards Grid ─────────────────────────────────────── */
.features-section {
    padding: var(--space-3xl) 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.feature-card {
    padding: var(--space-xl);
}

.feature-card .feature-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    position: relative;
}

.feature-card .feature-icon::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    opacity: 0.15;
}

.feature-icon.purple { background: rgba(124, 58, 237, 0.15); color: var(--accent-purple-light); }
.feature-icon.cyan { background: rgba(6, 214, 160, 0.15); color: var(--accent-cyan); }
.feature-icon.gold { background: rgba(212, 175, 55, 0.15); color: var(--accent-gold); }
.feature-icon.pink { background: rgba(247, 37, 133, 0.15); color: var(--accent-pink); }
.feature-icon.blue { background: rgba(58, 134, 255, 0.15); color: var(--accent-blue); }
.feature-icon.orange { background: rgba(255, 107, 53, 0.15); color: var(--accent-orange); }

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

.feature-card .feature-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    margin-top: var(--space-md);
    color: var(--accent-purple-light);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85rem;
    transition: var(--transition-base);
}

.feature-card .feature-link:hover {
    color: var(--accent-cyan);
    gap: var(--space-sm);
}

/* ─── Match Ticker ───────────────────────────────────────────── */
.match-ticker {
    padding: var(--space-2xl) 0;
}

.ticker-scroll {
    display: flex;
    gap: var(--space-md);
    overflow-x: auto;
    padding-bottom: var(--space-md);
    scroll-snap-type: x mandatory;
}

.ticker-scroll::-webkit-scrollbar { height: 4px; }
.ticker-scroll::-webkit-scrollbar-track { background: transparent; }
.ticker-scroll::-webkit-scrollbar-thumb { background: var(--accent-purple); border-radius: var(--radius-full); }

.match-card {
    flex: 0 0 280px;
    scroll-snap-align: start;
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.match-card .match-teams {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 1rem;
    font-weight: 600;
}

.match-card .match-teams .flag {
    font-size: 1.5rem;
}

.match-card .match-vs {
    font-size: 0.75rem;
    color: var(--accent-gold);
    font-weight: 700;
    text-transform: uppercase;
}

.match-card .match-info {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
}

.match-card .match-stage {
    font-size: 0.7rem;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    background: rgba(124, 58, 237, 0.15);
    color: var(--accent-purple-light);
    font-weight: 600;
}

.match-card .match-score {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent-gold);
}

.match-status-live {
    color: var(--accent-pink);
    font-weight: 700;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 4px;
}

.match-status-live .live-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-pink);
    animation: pulse 1.5s ease-in-out infinite;
}

/* ─── Page Header ────────────────────────────────────────────── */
.page-header {
    padding: var(--space-2xl) 0 var(--space-xl);
    text-align: center;
}

.page-header h1 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--space-sm);
}

.page-header p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ─── Chatbot ────────────────────────────────────────────────── */
.chat-container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-xl) 0 var(--space-2xl);
}

.chat-window {
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 65vh;
    min-height: 500px;
}

.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) var(--space-xl);
    background: rgba(17, 22, 56, 0.9);
    border-bottom: 1px solid var(--glass-border);
}

.chat-header-left {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.chat-avatar {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    background: var(--gradient-hero);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.chat-header-info h3 {
    font-size: 1rem;
    font-weight: 700;
}

.chat-header-info span {
    font-size: 0.75rem;
    color: var(--accent-cyan);
    display: flex;
    align-items: center;
    gap: 4px;
}

.chat-header-info .online-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-cyan);
    animation: pulse 2s ease-in-out infinite;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.chat-message {
    display: flex;
    gap: var(--space-sm);
    max-width: 80%;
    animation: fadeInUp 0.3s ease-out;
}

.chat-message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.chat-message .message-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.9rem;
}

.chat-message.ai .message-avatar {
    background: var(--gradient-hero);
}

.chat-message.user .message-avatar {
    background: rgba(6, 214, 160, 0.2);
}

.chat-message .message-bubble {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    line-height: 1.7;
}

.chat-message.ai .message-bubble {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-top-left-radius: var(--space-xs);
}

.chat-message.user .message-bubble {
    background: rgba(124, 58, 237, 0.2);
    border: 1px solid rgba(124, 58, 237, 0.3);
    border-top-right-radius: var(--space-xs);
}

.message-time {
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.chat-message.user .message-time {
    text-align: right;
}

/* Typing indicator */
.typing-indicator {
    display: none;
    padding: var(--space-sm) var(--space-md);
}

.typing-indicator.active {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.typing-dots {
    display: flex;
    gap: 4px;
}

.typing-dots span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-purple-light);
    animation: typingBounce 1.4s ease-in-out infinite;
}

.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-6px); }
}

/* Suggestions */
.chat-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border-top: 1px solid var(--glass-border);
    background: rgba(17, 22, 56, 0.5);
}

.suggestion-btn {
    padding: 6px 14px;
    border-radius: var(--radius-full);
    background: rgba(124, 58, 237, 0.1);
    border: 1px solid rgba(124, 58, 237, 0.2);
    color: var(--text-secondary);
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition-fast);
    font-family: var(--font-body);
}

.suggestion-btn:hover {
    background: rgba(124, 58, 237, 0.2);
    color: var(--text-primary);
    border-color: rgba(124, 58, 237, 0.4);
}

/* Chat input */
.chat-input-area {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: rgba(17, 22, 56, 0.9);
    border-top: 1px solid var(--glass-border);
}

.chat-input {
    flex: 1;
    padding: 12px 18px;
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    background: var(--bg-glass);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: var(--font-body);
    outline: none;
    transition: var(--transition-fast);
}

.chat-input::placeholder {
    color: var(--text-muted);
}

.chat-input:focus {
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.chat-send-btn {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--gradient-hero);
    border: none;
    color: white;
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
    flex-shrink: 0;
}

.chat-send-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 20px rgba(124, 58, 237, 0.4);
}

.language-select {
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    background: var(--bg-glass);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    font-size: 0.8rem;
    font-family: var(--font-body);
    cursor: pointer;
    outline: none;
}

/* ─── Stadium Map ────────────────────────────────────────────── */
.stadium-layout {
    display: grid;
    grid-template-columns: 1fr var(--sidebar-width);
    gap: var(--space-xl);
    padding: var(--space-xl) 0 var(--space-2xl);
}

.map-container {
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--glass-border);
    min-height: 500px;
    position: relative;
}

#stadium-map {
    width: 100%;
    height: 100%;
    min-height: 500px;
    background: var(--bg-secondary);
}

.map-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.poi-filter-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.poi-filter {
    padding: 6px 14px;
    border-radius: var(--radius-full);
    border: 1px solid var(--glass-border);
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition-fast);
    font-family: var(--font-body);
}

.poi-filter:hover, .poi-filter.active {
    background: rgba(124, 58, 237, 0.15);
    border-color: var(--accent-purple);
    color: var(--text-primary);
}

.poi-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    max-height: 400px;
    overflow-y: auto;
}

.poi-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    background: var(--bg-glass);
    border: 1px solid var(--glass-border);
    cursor: pointer;
    transition: var(--transition-fast);
}

.poi-item:hover {
    background: rgba(124, 58, 237, 0.1);
    border-color: var(--glass-border-hover);
}

.poi-item .poi-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.poi-item .poi-info h4 {
    font-size: 0.85rem;
    font-weight: 600;
}

.poi-item .poi-info p {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.stadium-selector {
    width: 100%;
    padding: 12px 18px;
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    background: var(--bg-glass);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: var(--font-body);
    cursor: pointer;
    outline: none;
}

.stadium-selector option {
    background: var(--bg-primary);
    color: var(--text-primary);
}

/* ─── Schedule ───────────────────────────────────────────────── */
.schedule-container {
    padding: var(--space-xl) 0 var(--space-2xl);
}

.schedule-filters {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin-bottom: var(--space-xl);
    justify-content: center;
}

.filter-btn {
    padding: 8px 20px;
    border-radius: var(--radius-full);
    border: 1px solid var(--glass-border);
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    font-family: var(--font-body);
}

.filter-btn:hover, .filter-btn.active {
    background: rgba(124, 58, 237, 0.15);
    border-color: var(--accent-purple);
    color: var(--text-primary);
}

.schedule-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-lg);
}

.schedule-match-card {
    padding: var(--space-xl);
    cursor: pointer;
}

.schedule-match-card .match-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.schedule-match-card .match-stage-badge {
    font-size: 0.7rem;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    background: rgba(124, 58, 237, 0.15);
    color: var(--accent-purple-light);
    font-weight: 600;
}

.schedule-match-card .match-status-badge {
    font-size: 0.65rem;
    padding: 3px 8px;
    border-radius: var(--radius-full);
    font-weight: 600;
}

.match-status-badge.completed { background: rgba(6, 214, 160, 0.15); color: var(--accent-cyan); }
.match-status-badge.scheduled { background: rgba(58, 134, 255, 0.15); color: var(--accent-blue); }
.match-status-badge.live { background: rgba(247, 37, 133, 0.15); color: var(--accent-pink); }

.schedule-match-card .match-teams-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.schedule-match-card .team-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    flex: 1;
}

.schedule-match-card .team-flag {
    font-size: 2rem;
}

.schedule-match-card .team-name {
    font-size: 0.85rem;
    font-weight: 600;
    text-align: center;
}

.schedule-match-card .match-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.schedule-match-card .match-center .score-display {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent-gold);
}

.schedule-match-card .match-center .vs-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 700;
}

.schedule-match-card .match-details {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-top: var(--space-md);
    border-top: 1px solid var(--glass-border);
}

.schedule-match-card .match-detail {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.match-preview-container {
    margin-top: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    background: rgba(124, 58, 237, 0.05);
    border: 1px solid rgba(124, 58, 237, 0.1);
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.7;
    display: none;
}

.match-preview-container.active {
    display: block;
    animation: fadeInUp 0.3s ease-out;
}

/* ─── Crowd Dashboard ────────────────────────────────────────── */
.crowd-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    padding: var(--space-xl) 0 var(--space-2xl);
}

.crowd-chart-card {
    padding: var(--space-xl);
}

.crowd-chart-card h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.crowd-chart-card canvas {
    width: 100% !important;
    max-height: 280px;
}

.crowd-zones-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-md);
    padding: var(--space-xl) 0;
}

.zone-card {
    padding: var(--space-md);
    text-align: center;
}

.zone-card .zone-density {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
}

.zone-card .zone-name {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: var(--space-xs);
    font-weight: 500;
}

.zone-card .zone-people {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.zone-card .zone-bar {
    width: 100%;
    height: 4px;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-full);
    margin-top: var(--space-sm);
    overflow: hidden;
}

.zone-card .zone-bar-fill {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 1s ease-out;
}

.zone-alert-normal .zone-density { color: var(--accent-cyan); }
.zone-alert-warning .zone-density { color: var(--accent-gold); }
.zone-alert-critical .zone-density { color: var(--accent-pink); }

.ai-recommendations {
    padding: var(--space-xl);
    margin: var(--space-xl) 0;
}

.ai-recommendations h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.ai-recommendations .ai-response {
    font-size: 0.9rem;
    line-height: 1.8;
    color: var(--text-secondary);
    white-space: pre-line;
}

.overall-density-display {
    text-align: center;
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.overall-density-display .density-ring {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.density-ring::before {
    content: '';
    position: absolute;
    inset: 4px;
    border-radius: 50%;
    background: var(--bg-deep);
}

.density-ring .density-value {
    position: relative;
    z-index: 1;
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 800;
}

.density-ring .density-unit {
    position: relative;
    z-index: 1;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ─── Accessibility Page ─────────────────────────────────────── */
.accessibility-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
    padding: var(--space-xl) 0;
}

.access-feature-card {
    padding: var(--space-xl);
    text-align: center;
}

.access-feature-card .access-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.access-feature-card h3 {
    font-family: var(--font-heading);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.access-feature-card p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.access-controls {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
    padding: var(--space-xl) 0;
}

.access-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 12px 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    background: var(--bg-glass);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition-base);
    font-family: var(--font-body);
}

.access-toggle:hover, .access-toggle.active {
    border-color: var(--accent-purple);
    background: rgba(124, 58, 237, 0.15);
}

.route-finder {
    max-width: 600px;
    margin: var(--space-xl) auto;
    padding: var(--space-xl);
}

.route-finder h3 {
    font-family: var(--font-heading);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    text-align: center;
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-secondary);
}

.form-input, .form-select {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    background: var(--bg-glass);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: var(--font-body);
    outline: none;
    transition: var(--transition-fast);
}

.form-input:focus, .form-select:focus {
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.form-select option {
    background: var(--bg-primary);
}

.route-result {
    margin-top: var(--space-lg);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    background: rgba(6, 214, 160, 0.05);
    border: 1px solid rgba(6, 214, 160, 0.2);
    font-size: 0.9rem;
    line-height: 1.8;
    color: var(--text-secondary);
    white-space: pre-line;
    display: none;
}

.route-result.active {
    display: block;
    animation: fadeInUp 0.3s ease-out;
}

/* ─── Sustainability Page ────────────────────────────────────── */
.sustainability-hero {
    text-align: center;
    padding: var(--space-xl) 0;
}

.eco-score-display {
    padding: var(--space-xl);
    text-align: center;
    max-width: 400px;
    margin: 0 auto var(--space-xl);
}

.eco-score-display .eco-level {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.eco-score-display .eco-score-value {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-cyan);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.eco-score-display .eco-carbon {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.eco-actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    padding: var(--space-xl) 0;
}

.eco-action-btn {
    padding: var(--space-lg);
    text-align: center;
    cursor: pointer;
    border: none;
    font-family: var(--font-body);
    color: var(--text-primary);
}

.eco-action-btn .eco-emoji {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
    display: block;
}

.eco-action-btn .eco-action-name {
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 4px;
}

.eco-action-btn .eco-action-impact {
    font-size: 0.7rem;
    color: var(--accent-cyan);
}

.eco-tip-card {
    max-width: 600px;
    margin: var(--space-xl) auto;
    padding: var(--space-xl);
    text-align: center;
}

.eco-tip-card h3 {
    font-family: var(--font-heading);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.eco-tip-card .tip-text {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

/* ─── Footer ─────────────────────────────────────────────────── */
.footer {
    padding: var(--space-2xl) 0 var(--space-xl);
    border-top: 1px solid var(--glass-border);
    text-align: center;
    position: relative;
    z-index: 1;
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.footer p {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.footer .footer-links {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-md);
}

.footer .footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.8rem;
    transition: var(--transition-fast);
}

.footer .footer-links a:hover {
    color: var(--accent-purple-light);
}

.footer .sustainability-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    background: rgba(6, 214, 160, 0.1);
    border: 1px solid rgba(6, 214, 160, 0.2);
    color: var(--accent-cyan);
    font-size: 0.7rem;
    font-weight: 600;
    margin-top: var(--space-md);
}

/* ─── Animations ─────────────────────────────────────────────── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.fade-in { animation: fadeInUp 0.6s ease-out both; }
.fade-in-delay-1 { animation-delay: 0.1s; }
.fade-in-delay-2 { animation-delay: 0.2s; }
.fade-in-delay-3 { animation-delay: 0.3s; }
.fade-in-delay-4 { animation-delay: 0.4s; }
.fade-in-delay-5 { animation-delay: 0.5s; }

/* ─── Utility ────────────────────────────────────────────────── */
.text-gradient {
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gold {
    color: var(--accent-gold);
}

.text-center { text-align: center; }
.mt-1 { margin-top: var(--space-md); }
.mt-2 { margin-top: var(--space-xl); }
.mt-3 { margin-top: var(--space-2xl); }
.mb-1 { margin-bottom: var(--space-md); }
.mb-2 { margin-bottom: var(--space-xl); }

/* ─── Loading Spinner ────────────────────────────────────────── */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid rgba(124, 58, 237, 0.2);
    border-top-color: var(--accent-purple);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ─── High Contrast Mode ─────────────────────────────────────── */
body.high-contrast {
    --bg-deep: #000000;
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-card: rgba(30, 30, 30, 0.9);
    --text-primary: #ffffff;
    --text-secondary: #d4d4d4;
    --glass-border: rgba(255, 255, 255, 0.3);
}

body.high-contrast .glass-card {
    border-width: 2px;
}

/* Large font mode */
body.large-font {
    font-size: 20px;
}

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .stadium-layout {
        grid-template-columns: 1fr;
    }

    .crowd-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --navbar-height: 60px;
    }

    .navbar-nav {
        display: none;
        position: fixed;
        top: var(--navbar-height);
        left: 0;
        right: 0;
        background: rgba(6, 9, 24, 0.95);
        backdrop-filter: var(--glass-blur);
        flex-direction: column;
        padding: var(--space-lg);
        border-bottom: 1px solid var(--glass-border);
    }

    .navbar-nav.active {
        display: flex;
    }

    .navbar-toggle {
        display: block;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .schedule-grid {
        grid-template-columns: 1fr;
    }

    .chat-window {
        height: 75vh;
    }

    .chat-message {
        max-width: 90%;
    }

    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .eco-actions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}